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Cortex

Cortex is an MCP server that adds developer tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Cortex - Generates interactive API documentation, typed SDKs, and MCP servers from OpenAPI, AsyncAPI, GraphQL, gRPC, OpenRPC, and Markdown. It has 3,289 GitHub stars, is released under the MIT license and runs locally with npx -y @cortex-docs/cli.

github.com/cortex-docs/cortex (opens in a new tab)

Data as of from the GitHub API; description from the project's repository. Report an error

View on GitHub (opens in a new tab)

Install Cortex

Generated from the server's published package. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "cortex": {
      "command": "npx",
      "args": [
        "-y",
        "@cortex-docs/cli"
      ]
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --transport stdio cortex -- npx -y @cortex-docs/cli

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "cortex": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cortex-docs/cli"
      ]
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "servers": {
    "cortex": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cortex-docs/cli"
      ]
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

About Cortex

Cortex turns API specifications and Markdown into typed SDKs, interactive documentation, and an MCP server from one project configuration.

  • api-client
  • api-documentation
  • api-reference
  • asyncapi
  • code-generation
  • docs
  • documentation-generator
  • graphql
  • grpc
  • markdown

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FAQ

Cortex FAQ

Still curious? Email info@appsgit.com.

How do I install the Cortex MCP server?

Add the command npx -y @cortex-docs/cli to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is Cortex free?

The server is open source under the MIT license, so running it is free. It does not declare any required API key.

Is Cortex actively maintained?

The most recent commit was on Oct 1, 2026. The latest release is v0.1.36, published Sep 28, 2026. appsgit only lists MCP servers with a commit in the last six months.